diff --git a/backend/bot/services/panel_webhook_service.py b/backend/bot/services/panel_webhook_service.py
index c2d1c26..f8b6b97 100644
--- a/backend/bot/services/panel_webhook_service.py
+++ b/backend/bot/services/panel_webhook_service.py
@@ -46,6 +46,13 @@ EVENT_MAP = {
         days_left=1,
     ),
 }
+ACTIONABLE_EVENTS = frozenset(
+    {
+        *EVENT_MAP.keys(),
+        "user.expired",
+        "user.expired_24_hours_ago",
+    }
+)
 
 
 class PanelWebhookService:
@@ -128,6 +135,15 @@ class PanelWebhookService:
         if not self.settings.SUBSCRIPTION_NOTIFICATIONS_ENABLED:
             return
 
+        if event_name not in ACTIONABLE_EVENTS:
+            logging.info(
+                "Panel webhook event %s ignored: event is not used for subscription "
+                "notifications; %s",
+                event_name,
+                self._payload_log_context(user_payload),
+            )
+            return
+
         async with self.async_session_factory() as session:
             db_user = await self._user_for_payload(session, user_payload)
             sub = await self._subscription_for_payload(session, user_payload, db_user)
@@ -144,7 +160,17 @@ class PanelWebhookService:
             )
             if not sub:
                 if not telegram_id:
-                    logging.warning("Panel webhook event %s has no local subscription", event_name)
+                    local_user_id = getattr(db_user, "user_id", None) if db_user else None
+                    logging.warning(
+                        "Panel webhook event %s cannot be matched to a local subscription; "
+                        "notification skipped. %s local_user_id=%s. Possible causes: "
+                        "panel user was created outside the bot, subscription was deleted "
+                        "or not synced, panel identifiers changed, or skip_notifications "
+                        "is enabled for the local subscription.",
+                        event_name,
+                        self._payload_log_context(user_payload),
+                        local_user_id or "N/A",
+                    )
                     return
                 await self._send_legacy_without_dedupe(
                     event_name,
@@ -403,6 +429,31 @@ class PanelWebhookService:
     def _payload_expire_date(user_payload: dict) -> str:
         return str(user_payload.get("expireAt") or "")[:10]
 
+    @staticmethod
+    def _payload_log_context(user_payload: dict) -> str:
+        telegram_id = PanelWebhookService._payload_telegram_id(user_payload)
+        panel_uuid = PanelWebhookService._payload_panel_uuid(user_payload)
+        email = PanelWebhookService._mask_email(str(user_payload.get("email") or "").strip())
+        expire_at = str(user_payload.get("expireAt") or "").strip()
+        payload_keys = ",".join(sorted(str(key) for key in user_payload.keys())) or "none"
+        return (
+            f"telegramId={telegram_id or 'N/A'} "
+            f"panel_uuid={panel_uuid or 'N/A'} "
+            f"email={email or 'N/A'} "
+            f"expireAt={expire_at or 'N/A'} "
+            f"payload_keys={payload_keys}"
+        )
+
+    @staticmethod
+    def _mask_email(email: str) -> str:
+        if not email:
+            return ""
+        local_part, separator, domain = email.partition("@")
+        if not separator or not domain:
+            return "present"
+        visible = local_part[:2] if len(local_part) > 2 else local_part[:1]
+        return f"{visible}***@{domain}"
+
     @staticmethod
     def _payload_expire_datetime(user_payload: dict) -> Optional[datetime]:
         raw = str(user_payload.get("expireAt") or "").strip()
diff --git a/tests/test_panel_webhook_routing.py b/tests/test_panel_webhook_routing.py
index e9525fe..f91b36c 100644
--- a/tests/test_panel_webhook_routing.py
+++ b/tests/test_panel_webhook_routing.py
@@ -133,5 +133,69 @@ class HandleWebhookQueueingTests(unittest.IsolatedAsyncioTestCase):
         self.assertEqual(background_seen, [("user.expired", {"telegramId": 7})])
 
 
+class _FakeSessionContext:
+    async def __aenter__(self):
+        return object()
+
+    async def __aexit__(self, exc_type, exc, tb):
+        return False
+
+
+class _FakeSessionFactory:
+    def __call__(self):
+        return _FakeSessionContext()
+
+
+class HandleEventLoggingTests(unittest.IsolatedAsyncioTestCase):
+    async def test_unsupported_event_is_logged_as_ignored(self):
+        service = _make_service()
+
+        with self.assertLogs(level="INFO") as logs:
+            await service.handle_event(
+                "user.modified",
+                {"uuid": "panel-user-1", "email": "client@example.com"},
+            )
+
+        message = "\n".join(logs.output)
+        self.assertIn("Panel webhook event user.modified ignored", message)
+        self.assertIn("event is not used for subscription notifications", message)
+        self.assertIn("panel_uuid=panel-user-1", message)
+        self.assertIn("email=cl***@example.com", message)
+
+    async def test_missing_subscription_warning_includes_payload_context(self):
+        service = _make_service()
+        service.async_session_factory = _FakeSessionFactory()
+
+        async def fake_user_for_payload(session, user_payload):
+            return SimpleNamespace(user_id=123, language_code=None)
+
+        async def fake_subscription_for_payload(session, user_payload, db_user):
+            return None
+
+        with (
+            patch.object(service, "_user_for_payload", fake_user_for_payload),
+            patch.object(service, "_subscription_for_payload", fake_subscription_for_payload),
+            self.assertLogs(level="WARNING") as logs,
+        ):
+            await service.handle_event(
+                "user.expired",
+                {
+                    "uuid": "panel-user-2",
+                    "email": "person@example.com",
+                    "expireAt": "2026-05-30T07:18:32Z",
+                },
+            )
+
+        message = "\n".join(logs.output)
+        self.assertIn("cannot be matched to a local subscription", message)
+        self.assertIn("notification skipped", message)
+        self.assertIn("telegramId=N/A", message)
+        self.assertIn("panel_uuid=panel-user-2", message)
+        self.assertIn("email=pe***@example.com", message)
+        self.assertIn("expireAt=2026-05-30T07:18:32Z", message)
+        self.assertIn("local_user_id=123", message)
+        self.assertIn("subscription was deleted or not synced", message)
+
+
 if __name__ == "__main__":  # pragma: no cover
     unittest.main()